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authorEric W. Biederman <ebiederm@xmission.com>2012-11-16 07:02:58 +0400
committerDavid S. Miller <davem@davemloft.net>2012-11-19 05:30:55 +0400
commit73f7ef435934e952c1d70d83d69921ea5d1f6bd4 (patch)
treea5d0bbe5e1154eaec96f859507e90bae4b34d0b9 /include/linux/sysctl.h
parentd328b836823cd4a76611a45f52e208f8ce3d75d7 (diff)
downloadlinux-73f7ef435934e952c1d70d83d69921ea5d1f6bd4.tar.xz
sysctl: Pass useful parameters to sysctl permissions
- Current is implicitly avaiable so passing current->nsproxy isn't useful. - The ctl_table_header is needed to find how the sysctl table is connected to the rest of sysctl. - ctl_table_root is avaiable in the ctl_table_header so no need to it. With these changes it becomes possible to write a version of net_sysctl_permission that takes into account the network namespace of the sysctl table, an important feature in extending the user namespace. Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/sysctl.h')
-rw-r--r--include/linux/sysctl.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index cd844a6a8d5f..14a8ff2de11e 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -158,8 +158,7 @@ struct ctl_table_root {
struct ctl_table_set default_set;
struct ctl_table_set *(*lookup)(struct ctl_table_root *root,
struct nsproxy *namespaces);
- int (*permissions)(struct ctl_table_root *root,
- struct nsproxy *namespaces, struct ctl_table *table);
+ int (*permissions)(struct ctl_table_header *head, struct ctl_table *table);
};
/* struct ctl_path describes where in the hierarchy a table is added */